I ran AKG hypers (Nbob PFA's) + DPA4023's into a Zoom F8 last night. It wasn't my deck, so I'm not familiar with it much at all.

Both sources sound good on their own but when i went to matrix them, i noticed that one set was inverted from the other. not sure which was normal and which wasn't. it was an easy fix in audacity, but how does that happen?

DSatz said:"Microphone manufacturers are free to ground either side of their capsules, and to apply a positive or a negative charge, as long as in the end, the output of their amplifier has the correct signal polarity."

DSatz said:"Microphone manufacturers are free to ground either side of their capsules, and to apply a positive or a negative charge, as long as in the end, the output of their amplifier has the correct signal polarity."

that makes the most sense. i'm assuming, since DSatz also had the issue with Nbob cables, it's possible that Nick solders the connections differently.

not a big deal at all if you're only using one set of mics, and it's easily fixable in post to do a matrix.

The F8 has the ability to change phase of specific channels, so it's possible that's the culprit. Since it's not your deck maybe it was already set with phase inverted on some channels for whatever reason.

The F8 has the ability to change phase of specific channels, so it's possible that's the culprit. Since it's not your deck maybe it was already set with phase inverted on some channels for whatever reason.

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DSatz said:"Microphone manufacturers are free to ground either side of their capsules, and to apply a positive or a negative charge, as long as in the end, the output of their amplifier has the correct signal polarity."

that makes the most sense. i'm assuming, since DSatz also had the issue with Nbob cables, it's possible that Nick solders the connections differently.

not a big deal at all if you're only using one set of mics, and it's easily fixable in post to do a matrix.

Dsatz didn't have the issue he just chimed in on my thread. We came to conclusion that JBell's pfa were wired incorrectly thus the issue. You should be able to easily replicate it at home if it is fact the cables or pfa's.

After further investigating my PFA wasn't wired incorrectly!! Schoeps KCY PFA's which is what I was using are wired noninverting to yield positive polarity with schoeps caps. Using it with Microtech Gefell M20 caps and a Nbob KCY for Gefell's it was a negative polarity so I had the PFA changed to inverting to fix the problem. I have a backup pfa that I need to test to prove this, but after looking at old recordings when I ran schoeps I'm almost positive this was the problem. My M20 caps must be grounded different than schoeps caps I previously ran.

DSatz said:"Microphone manufacturers are free to ground either side of their capsules, and to apply a positive or a negative charge, as long as in the end, the output of their amplifier has the correct signal polarity."

that makes the most sense. i'm assuming, since DSatz also had the issue with Nbob cables, it's possible that Nick solders the connections differently.

not a big deal at all if you're only using one set of mics, and it's easily fixable in post to do a matrix.

Dsatz didn't have the issue he just chimed in on my thread. We came to conclusion that JBell's pfa were wired incorrectly thus the issue. You should be able to easily replicate it at home if it is fact the cables or pfa's.

After further investigating my PFA wasn't wired incorrectly!! Schoeps KCY PFA's which is what I was using are wired noninverting to yield positive polarity with schoeps caps. Using it with Microtech Gefell M20 caps and a Nbob KCY for Gefell's it was a negative polarity so I had the PFA changed to inverting to fix the problem. I have a backup pfa that I need to test to prove this, but after looking at old recordings when I ran schoeps I'm almost positive this was the problem. My M20 caps must be grounded different than schoeps caps I previously ran.

DSatz said:"Microphone manufacturers are free to ground either side of their capsules, and to apply a positive or a negative charge, as long as in the end, the output of their amplifier has the correct signal polarity."

that makes the most sense. i'm assuming, since DSatz also had the issue with Nbob cables, it's possible that Nick solders the connections differently.

not a big deal at all if you're only using one set of mics, and it's easily fixable in post to do a matrix.

Dsatz didn't have the issue he just chimed in on my thread. We came to conclusion that JBell's pfa were wired incorrectly thus the issue. You should be able to easily replicate it at home if it is fact the cables or pfa's.

so, to clarify... it's possible that the PFA's are wired opposite to the AKG caps?

because I guess that makes sense. i'm not very knowledgeable on the subject (why i created the thread). That said, i guess there isn't really anything "wrong". it's just a matter of making sure the polarity is playing well with another set of mics when making a mix.

After further investigating my PFA wasn't wired incorrectly!! Schoeps KCY PFA's which is what I was using are wired noninverting to yield positive polarity with schoeps caps. Using it with Microtech Gefell M20 caps and a Nbob KCY for Gefell's it was a negative polarity so I had the PFA changed to inverting to fix the problem. I have a backup pfa that I need to test to prove this, but after looking at old recordings when I ran schoeps I'm almost positive this was the problem. My M20 caps must be grounded different than schoeps caps I previously ran.

DSatz said:"Microphone manufacturers are free to ground either side of their capsules, and to apply a positive or a negative charge, as long as in the end, the output of their amplifier has the correct signal polarity."

that makes the most sense. i'm assuming, since DSatz also had the issue with Nbob cables, it's possible that Nick solders the connections differently.

not a big deal at all if you're only using one set of mics, and it's easily fixable in post to do a matrix.

Dsatz didn't have the issue he just chimed in on my thread. We came to conclusion that JBell's pfa were wired incorrectly thus the issue. You should be able to easily replicate it at home if it is fact the cables or pfa's.

so, to clarify... it's possible that the PFA's are wired opposite to the AKG caps?

because I guess that makes sense. i'm not very knowledgeable on the subject (why i created the thread). That said, i guess there isn't really anything "wrong". it's just a matter of making sure the polarity is playing well with another set of mics when making a mix.